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Vlad1618 [11]
2 years ago
7

Please help me I will give a briainliest​

Mathematics
2 answers:
Vadim26 [7]2 years ago
7 0

Answer:

see step by step

Step-by-step explanation:

1- d, 619,500

2- a, meters

3- c, 2

seraphim [82]2 years ago
4 0

Answer:

619,500 , m, approx. 2

Step-by-step explanation:

Hope this helps!

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SIZIF [17.4K]

(18 \div 2)  + 2 = x
X= lbs Abbys dog weighs
so you would take 18 divide by 2 which is 9, then you add 2. So Abbys dog weighs, 11 lbs.
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PLEASE, PLEASE, PLEASE HELP ME!!!! I NEED THE ANSWER IN ONE HOUR!!! Ben has 57 toys. 15 of them are new, 9 are his favorite ones
storchak [24]
So.... there are a total of 57 toys, which the new and favorites ones are not going to be sold.

The equation would ultimately go into 57 - (15+9+2), which would equal to 31. Ultimately, he sells 31 toys and have 26 left over.

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PLEASE HELP THIS IS DUE IN A FEW MINUTES PLEASE I WILL MARK YOU BRAINLIEST!!
Lady bird [3.3K]

Answer:

7. MN = 12

8. m<XYZ = 90°

9. m<YXM = 49°

10. m<XWZ = 131°

Step-by-step explanation:

This drawing is messed up.

The perspective is off because <NMW looks to be an obtuse angle because it appears to be greater than a square angle or 90°.

The median should be accurate in perspective even though WZ appears to be greater than MN or XY which is greater than WZ but appears to be smaller than WZ.

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A heat source transfers 3000 J/sec to a metal part surface. The heated area is circular, and the heat intensity decreases as the
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Answer:

The resulting power density is enough to melt the metal.

Step-by-step explanation:

Given data:

Power = P = 3000 J/sec

diameter = d = 3.5 mm

Solution:

As we Know that Area = A = π r² ---- (1)

where r is radius.

Also Radius =  \frac{diameter}{2}

Putting the values of radius, π = 3.14 in equation 1, we get

A = 3.14 x (\frac{d}{2})²

A = 3.14 x (3.5/2)²

A = 9.62 mm²

As 75% of heat is concentrated in circular area then Power P becomes

P = 3000 J/sec x 75 %

As J/sec = Watt = W and 75 % = 3/4

so P = 3000 W x 3/4

P = 2250 W

As power density is represented by the formula:

Power density = PD = P/A

where P is Power and A is area.

So,

PD = P/A

Putting the values of Power and Area in above equation, we get

PD = 2250 W / 9.62 mm²

PD = 234 W/mm²

So, this power density is sufficient to melt the metal.

8 0
3 years ago
How do you solve this problem?
larisa86 [58]

Answer:

21

Step-by-step explanation:

3x+6=5x-4 because of alternate interior angles of a parallel line

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3 years ago
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